- warrant, stock warrant, stock-purchase warrant - a type of security issued by a corporation (usually together with a bond or preferred stock) that gives the holder the right to purchase a certain amount of common stock at a stated price; "as a sweetener they offered warrants along with the fixed-income securities"
--1 is a kind of security, surety
--1 has particulars: perpetual warrant; subscription warrant - stock warrant - a written certificate that gives the holder the right to purchase shares of a stock for a specified price within a specified period of time
--2 is a kind of guarantee, warrant, warrantee, warranty